SA12A:
Dynamics and Coupling Processes of the Ionosphere and Thermosphere at Middle and Low Latitudes I

Submit an Abstract to this Session



Session ID#: 32180

Session Description:
The ionosphere and thermosphere are very dynamic and strongly coupled over various spatial and time scales during both quiet times and geomagnetic storms. This session will address the recent progress, current understanding, and future challenges of thermospheric and ionospheric research at middle and low latitudes, and will focus on two areas. One area is equatorial ionospheric electrodynamics and disturbances, including plasma drift, equatorial spread F, plasma bubbles, and resultant scintillation. Another area is the response of the ionospheric-thermospheric system to geomagnetic storms, including penetration and dynamo electric fields, the variations of neutral and ion compositions on the bottomside and topside, atmospheric gravity waves and TIDs, and different drivers to the generation of storm-time disturbances. We welcome observational, theoretical, and modeling studies that improve our understanding and enable a better forecasting capability of thermospheric and ionospheric dynamics and coupling processes. Presentations on new instrument and observational methods are also encouraged.

Primary Convener:  Chaosong Huang, Air Force Research Laboratory, Albuquerque, NM, United States
Conveners:  Yongliang Zhang, Johns Hopkins University, Baltimore, MD, United States, Wenbin Wang, High Altitude Observatory, Boulder, CO, United States and Shunrong Zhang, MIT Haystack Observatory, Westford, MA, United States
Chairs:  Chaosong Huang, Air Force Research Laboratory, Albuquerque, NM, United States and Shunrong Zhang, MIT Haystack Observatory, Westford, MA, United States
OSPA Liaison:  Chaosong Huang, Air Force Research Laboratory, Albuquerque, NM, United States
Index Terms:

2415 Equatorial ionosphere [IONOSPHERE]
2435 Ionospheric disturbances [IONOSPHERE]
2437 Ionospheric dynamics [IONOSPHERE]
2443 Midlatitude ionosphere [IONOSPHERE]

Abstracts Submitted to this Session:

Magnetosphere-Ionosphere-Thermosphere Response to Quasi-periodic Oscillations in Solar Wind Driving Conditions (261369)
Jing Liu1, Wenbin Wang2, Binzheng Zhang2 and Chaosong Huang3, (1)High Altitude Observatory, Boulder, CO, United States, (2)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (3)Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States
The causes of thermospheric composition variations during and after major geomagnetic storms (218920)
Wenbin Wang1, Alan Geoffrey Burns1, Yongliang Zhang2 and Jing Liu3, (1)High Altitude Observatory, Boulder, CO, United States, (2)JHU Applied Physics Laboratory, Laurel, MD, United States, (3)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Recent observations of traveling ionospheric disturbances and plasma bubbles using Optical Mesosphere Thermosphere Imagers in Asian and African sectors (Invited) (207855)
Kazuo Shiokawa1, Yuichi Otsuka2, Satoshi Tsuchiya2, Ayşegül Ceren Moral1 and Daniel Izuikedinachi Okoh3, (1)Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan, (2)Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan, (3)National Space Research & Development Agency, Abuja, Nigeria
High-speed and supersonic upward plasma drifts: multi-instrumental study (229024)
Elvira Astafyeva1, Irina Zakharenkova1, Marc R Hairston2, Joseph Huba3 and William Robin Coley4, (1)Institut de Physique du Globe de Paris, Paris, France, (2)University of Texas at Dallas, William B. Hanson Center for Space Sciences, Richardson, TX, United States, (3)US Naval Research Laboratory, Plasma Physics Division, Washington, DC, United States, (4)Univ. of Texas at Dallas, Richardson, TX, United States
Vertical Rise Velocity of Equatorial Plasma Bubbles Estimated from Equatorial Atmosphere Radar Observations and High-Resolution Bubble Model Simulations (223036)
Tatsuhiro Yokoyama1, Tulasi Ram S.2, K K Ajith2, Mamoru Yamamoto3 and Kandula Niranjan4, (1)National Institute of Information and Communications Technolog, Koganei, Japan, (2)Indian Institute of Geomagnetism, Navi Mumbai, India, (3)Kyoto University, Research Institute for Sustainable Humanosphere, Kyoto, Japan, (4)Andhra University, Visakhapatnam, India
Equatorial plasma bubble seeding process related to MSTID (256342)
Hisao Takahashi1, Cristiano M. Wrasse1, Cosme Alexandre Oliveira Barros Figueiredo2, Diego Barros3, Mangalathayil Ali Abdu3, Yuichi Otsuka4 and Shiokawa Kazuo5, (1)National Institute for Space Research (INPE), São José dos Campos, Brazil, (2)Federal University of Campina Grande (UFCG), Campina Grande, Brazil, (3)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, (4)Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan, (5)ISEE, Nagoya University, Nagoya, Japan
C/NOFS, SWARM, and LISN Observations of Equatorial Plasma Bubbles (219089)
Cesar Enrique Valladares, University of Texas at Dallas, W. B. Hanson Center for Space Sciences, Richardson, TX, United States, Pierdavide Coïsson, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS/INSU, Paris, France, Stephan C Buchert, IRF Swedish Institute of Space Physics Uppsala, Uppsala, Sweden, Chaosong Huang, Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States and Robert Sheehan, Boston College, Institute for Scientific Research, Newton, MA, United States

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